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N80.54

Non-billable

Endometriosis of the appendix

N80.54 is the ICD-10-CM code for Endometriosis of the appendix. It is a non-billable category code — use a more specific child code such as N80.541 for billing.

Status
Header (non-billable)
Chapter
N00-N99
Parent
N80.5
Subcodes
3
Edition
FY2026

N00-N99 Diseases of the genitourinary system

No additional coding notes for this code.

Frequently asked questions

What is ICD-10 code N80.54?
N80.54 is the ICD-10-CM code for "Endometriosis of the appendix". It falls under N00-N99 Diseases of the genitourinary system.
Is N80.54 a billable code?
No — N80.54 is a non-billable header code. Use a more specific child code (such as N80.541) for billing.
What are the subcodes of N80.54?
N80.54 has 3 more specific child codes, including N80.541, N80.542, N80.549.

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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